Pith Number

pith:7WSGR34Z

pith:2017:7WSGR34ZGY4ZWKPQWJZU7CVDJS

not attested not anchored not stored refs pending

Optimal Spraying in Biological Control of Pests

Cristiana J. Silva, Delfim F. M. Torres, Ezio Venturino

arxiv:1704.04073 v2 · 2017-04-13 · math.OC · q-bio.PE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7WSGR34ZGY4ZWKPQWJZU7CVDJS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:43:20.490699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fda468ef9936399b29f0b2734f8aa34ca4c5dd4107f2abb00df5360a9046912f

Aliases

arxiv: 1704.04073 · arxiv_version: 1704.04073v2 · doi: 10.48550/arxiv.1704.04073 · pith_short_12: 7WSGR34ZGY4Z · pith_short_16: 7WSGR34ZGY4ZWKPQ · pith_short_8: 7WSGR34Z

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7WSGR34ZGY4ZWKPQWJZU7CVDJS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: fda468ef9936399b29f0b2734f8aa34ca4c5dd4107f2abb00df5360a9046912f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf07d1595a4f0e1aa8ac1fbde599226b017b32568e38e0c2ca8ff8074ef1d0ef",
    "cross_cats_sorted": [
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-04-13T11:09:17Z",
    "title_canon_sha256": "520ef4b2b4509bb368bfe7153c59aaad11b521f4daa10b29bdcde6c74d5dc14a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04073",
    "kind": "arxiv",
    "version": 2
  }
}